.imgs {
    height: 400px;
    width: 800px;
    position: relative;
    margin: 0 auto;
    overflow: hidden;
}
.imgs img {
    position: absolute;
    height: 400px;
    width: 800px;
    left: 800px;
}
.imgs .btns {
    width: 800px;
    height: 30px;
    position: absolute;
    bottom: 30px;
    text-align: center;
}
.imgs .btns span {
    padding: 6px;
    margin: 5px;
    background-color: rgb(70, 70, 192);
    font-size: 0;
    border-radius: 50%;

}
.imgs .btns .chose {
    background-color:white;
}
.prev,.next {
    width: 30px;
    line-height: 50px;
    font-size: 30px;
    background-color: rgba(104, 99, 99,0.1);
    position: absolute;
    cursor: pointer;
    top: 50%;
    margin-top: -25px;
    text-align: center;
    color: white;
}
.prev {
    left: 0;
}
.next {
    right: 0;
}